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. 2016 Nov 16:25:167.
doi: 10.11604/pamj.2016.25.167.10060. eCollection 2016.

First line anti-tuberculosis induced hepatotoxicity: incidence and risk factors

Omaima El Bouazzi  1 , Sanaa Hammi  2 , Jamal Eddine Bourkadi  3 , Amina Tebaa  4 , Driss Soussi Tanani  5 , Rachida Soulaymani-Bencheikh  6 , Narjis Badrane  1 , Rachid Bengueddour  7
Affiliations

First line anti-tuberculosis induced hepatotoxicity: incidence and risk factors

Omaima El Bouazzi et al. Pan Afr Med J. .

Abstract

In our days, tuberculosis, whet ever its localization, became a curable disease. The cornerstone is a 6 month course of isoniazid, rifampicine and pyrazinamide. All of the three first line antituberculosis drugs may induce hepatic damage which may have negative consequences for treatment outcome. Several risk factors were associated with the development of antituberculosis- drug-induced hepatotoxicity (ATDH). A retrospective study was conducted from July 2014 to March 2015 regarding all therapeutic drug-monitoring requests sent to the Laboratory of Poison Control and Pharmacovigilance Centre of Morocco. 142 patients diagnosed with active tuberculosis were included in study. Plasma peak levels of isoniazid, rifampicin and pyrazinamide were analyzed in plasma samples after 2 to 3 hours of administration of anti-tuberculosis treatment. Logistic regression was used to identify the ATDH risk factors. The incidence of ATDH was found 24.6% (35 patients out of 142). Intergroup differences in the plasma levels were statistically significant for isoniazid (p=0.036). ATDH was found to be associated with combined form of anti-TB drugs (p=0.002, COR=13.1, AOR= 13.5) and plasma concentration of INH superior to 2mg/l (p=0.045, COR=1.3, AOR= 1.4).age, gender, alcohol intake and smoking status were not significantly associated with ATDH. The finding of 24.6% incidence of hepatotoxicity is extremely high. Many factors can be associated with the development of ATDH such as genetic factors, combined forms of treatment and plasma peak levels.

Keywords: Tuberculosis; hepatotoxicity; risk factor; therapeutic drug monitoring.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
Management of Anti-TB induced hepatotoxicity in Morocco
See this image and copyright information in PMC

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